Of the following factors, the one that is a part of the Drake equation is the a. temperature of the star during its main-sequence stage. b. number of O and B stars in the galaxy that exhibit the possible existence of orbiting planets. c. fraction of the lifetime of a star during which a technological civilization is capable of communicating. d. total number of planets in a solar system orbiting about a binary star.
Of the following factors, the one that is a part of the Drake equation is the a. temperature of the star during its main-sequence stage. b. number of O and B stars in the galaxy that exhibit the possible existence of orbiting planets. c. fraction of the lifetime of a star during which a technological civilization is capable of communicating. d. total number of planets in a solar system orbiting about a binary star.
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
Problem 1LR
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Of the following factors, the one that is a part of the Drake equation is the
| a. |
temperature of the star during its main-sequence stage.
|
|
| b. |
number of O and B stars in the galaxy that exhibit the possible existence of orbiting planets.
|
|
| c. |
fraction of the lifetime of a star during which a technological civilization is capable of communicating.
|
|
| d. |
total number of planets in a solar system orbiting about a binary star.
|
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